26531447 has 2 divisors, whose sum is σ = 26531448. Its totient is φ = 26531446.

The previous prime is 26531437. The next prime is 26531459. The reversal of 26531447 is 74413562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26531447 - 2⁴ = 26531431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26531437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13265723 + 13265724.

It is an arithmetic number, because the mean of its divisors is an integer number (13265724).

Almost surely, 2^26531447 is an apocalyptic number.

26531447 is a deficient number, since it is larger than the sum of its proper divisors (1).

26531447 is an equidigital number, since it uses as much as digits as its factorization.

26531447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 26531447 is about 5150.8685675331. The cubic root of 26531447 is about 298.2544821069.

The spelling of 26531447 in words is "twenty-six million, five hundred thirty-one thousand, four hundred forty-seven".